Messier 109 (M109) is a barred spiral galaxy located in the constellation Ursa Major. The galaxy lies at a distance of 83.5 million light years and has an apparent magnitude of 10.6. It has the designation NGC 3992 in the New General Catalogue. Messier 109 occupies an area of 7.6 by 4.7 arc minutes of… Read More »Messier 109